Software Error Basics

Who Causes Errors?

Software errors are caused by:

·    End-users

·    Programmers

·    Computer Systems

What Causes Errors?

Software errors are caused by:

·    Programmer Mistakes and Assumptions

·    Invalid data

·    Unexpected User Interactions

·    Missing Resources

o  Files

o  Databases

o  Network Connectivity

·    Poor network connection

·    Insufficient Permissions

Where Do Errors Occur?

Software errors can occur anywhere code is executed:

·    Desktop PC

·    Laptop PC

·    Server

·    Tablet PC

·    Mobile Phone

·    Any Device that can execute software

When Do Errors Occur?

Software errors occur when source code is being compiled (Compile-Time) or executed (Run-Time).